Rotary balance-valve.



lf. M. CHAPPELL.

Patented Dec. 3|, l90lv..

ROTARY BALANCE VALVE.

(Application led Feb. 8, 1901.)

(No Model.)

2 Sheets-Sheet l.

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N0. 690,232. Patented Dec. 3|, |90l.

F. M. CHAPPELL.

RUTARY BALANCE VALVE.

(Application led Feb. 6, 1901*.) (lo Model.) 2 Sheets-Sheet 2.

UNITED STATES PATENT EEICE.

FRANK M. CHAPPELL, OF PITTSBURG, PENNSYLVANIA.

Ro-TARY BALANCE-VALVE.

SPECIFICATION forming part of Letters Patent No. 690,232, dated December 31, 1901. Application filed February 6, 1901. Serial No. 46,160. (No model.)

To @ZZ whom it' may concern:

Beit known that I, FRANK M. CHAPPELL, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Rotary Balance-Valves, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in balance rotary valves, and has for its object to construct a valve of the above-described character that may be used for water, steam, air, gas, or other fluids under pressure.

The present invention aims to construct a device of this kind that will be extremely simple in its construction, strong, durable, comparatively inexpensive to manufacture, and highly eficient in its operation.

The invention further contemplates to construct a valve that will be perfectly balanced at all times; furthermore, to provide novel means that in case any of the parts become worn the same may be easily accessible and replaced at a comparatively small cost.

The invention still further aims to attach to a valve anovel form of mechanism whereby the valve may be easily opened or closed, as the case may be, and a gradual movement imparted'to the valve at any point that will overcome the heretofore objectionable feature in valves of this class of producing a sudden jar or jolt, as in the case of attaching an operating-lever directly to the valve-stem.

With the above and othelI objects in view the invention consists in the novel combination andr arrangement of parts to be hereinafter more fully described, and specifically pointed out in the claims.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, whe'rein like numerals of reference indicate corresponding parts throughout the several views, and in which- Figure l is a side elevation of my improved valve,V showing the same in an operative position. Fig. 2 is a top plan view thereof, sho W- ing in dotted lines the movement of the operatingfhandle. Fig. 3 is a side elevation of the operating@ handle carrying the locking means to retain the valve in a locked position. Fig. 4 is a vertical sectional view of the Valve. Fig. 5 is a top plan view showing a longitudinal sectional view of the valvc. Fig. 6 is a side elevation of the valve proper. Fig. 7 is a perspective view of the inner lining of the Valve-casing. Fig. 8 is a similar view of the removable casing secured to the valve. Fig. 9 is a front view of the upper portion of the standard upon which the operating-lever is mounted. Fig..l0 is a top plan'view thereof. Fig. l1 is a top plan view of the valve proper. Fig. 12 is a longitudinal sectional View taken on the line 12 12 of Fig. 6. Fig. 13 is a top plan view of the locking means of the operating-lever. view of the valve, showing the recessed seat for the ball-bearing.

In the drawings the reference-numeral 1 indicates an inlet port or pipe, which is connected to the valve-casing 2, said valve-casing carrying exterior screw threads 3, arranged on the upper end thereof, and similar screw-threads 4. are arranged at the lower end. The interior of the valve-casing is provided with a lining 5, which is cylindrical in form and conforms to the interior of the Valve-casing. This lining is provided at its one side with an inlet-port 6 and at its opposite side with an outlet-port 7. This lining has formed therein engaging notches 8, arranged in the upper and lower portions of the lining 5, to engage pins 9, secured in the interior of theyalVe-casing, which pins serve to securely retain the lining in proper position.

The reference-numeral 5a indicates the removable casing of the valve.

Fig. 14 is an underneath plan The reference-numeral 10 indicates a screwreaded cap/f" arranged upon the screwthr(eads t and forms the lower portion of the valve-casing.

The referencc-nnmeral 1l indicates a valve proper, carrying the valve stem 12. valve 11 has formed therein a V-shaped body portion 14, carrying an upper disk 15 and a lower disk 16. The said upper disk 15 has a cut-away portion 17, and a like cut-away portion 18 is arranged on the lower disk. The said upper disk has formed therein a port 19, communicating with the inner portion of the valve and cut-away portion 17, and a similar This 4 f IOO port 2O is arranged in the V-shaped portion 14 and extends from the cut-away portion 17 to the cut-away portion 18 through the entire length of the valve. The under face of the valve has formed therein a recess 2l, forming a seat for the ball-bearin g 22.

The referencenumeral 23 represents an outlet-pipe, which is suitably connected tothe valve-casing.

The reference-numeral 24 represents the upper screw-threaded cap, having formed integral therewith a stufling-box 25, this stuffing-box 25 carrying exterior screw-threads 26.

The reference-numeral 27 indicates a packing in the stuffing-box, and 28 represents a gland. The cap 29 is arranged over the stuffing-box and engages the exterior screwthreads 26 and retains the gland in proper position.

The reference-numeral 30 indicates a plate which is arranged over the stufiing-box and rests upon the cap 24. This plate is held in position by means of the jam-nut 31 engaging the exterior screw-threads of the stuffingboX. At the end of the plate 30 is rigidly secured or formed integra-l therewith an upright standard 32, carrying on its upper extremity a pair of outwardly-extending lugs 33, which are adapted tolimit the movement of the operating-handle, the latter being indicated by the reference-numeral 34. This operating-handle is provided at its rearward end with a segmental cog-rack 35, which is adapted to mesh with the cog-wheel 36, rigidly secured upon the valve-stem 12, and said operating-handle is provided at its under face with a pin 37, the latter being adapted to operate between the lugs 33, which limits the movement of the handle. The spring 38 is secured between the convexed washers 39, secured by a screw 40 upon the upper face of the operating handle, the lower convexed washer 39 being adapted to retain a retractile spring 41, whichserves to return the spring 38 to its normal position. The rearward end of the spring 38 is slightly bent downwardly, as shown at 42, and carries a tooth 43,`ar ranged centrally insaid spring to engage one of the teeth of the cog-Wheel 36, thereby locking thevoperating-handle to the cog-wheel at any desired point of its rotation.

The reference-numeral 44 indicates a tapscrew forming a fulcrum-point for the operating-handle, which is secured in the upright standard 32.

The reference-numeral 45 represents outwardly-extending apertured lugs of the cap 24 to receive a screw 46 for rigidly securing the plate 30 in position, which plate may be reversed to the opposite side of the valve-casing when desired and may be fastened to the lug of `the opposite side when such changes may be required.

The operation of my improved device is as follows: We will assume for the purpose of illustrating the detail operation of the action ofthe valve thatwater, steam, or the like enters the inlet-pipe, as shown in Fig. 4 of the drawings. As the water or steam enters the -Valve the same will rst strike the'inner sides of the triangular-shaped body portion and will thence be conducted through the port 19 upwardly, striking the under faceof the upa per cap 24, and will thence be conducted downwardly through the port 20, striking the inner face of the cap 10 and equalizing the pressure from above and below. Simultaneously with this action the water or steam will strike the shoulders of the cut-away portions 17 and 18 of the disks 1l and 16, respectively, and will equalize the pressure laterally against the body of the valve, thereby pro ducing the equalization of pressure not only from the top and bottom of the valve, but from the sides thereof as well.

The mechanical operation of the valve is as follows: When the operating-handle isturned in one direction or the other, it first releases the locking means and a rotary movement will be imparted to the valve-stem through the medium of the cog-wheel, which in turn gives a partial rotary movement to the valve proper and allows the port to be either opened or closed, as the case may be, the valve proper operating smoothly in the lining and upon the ball-bearing, as shown in the drawings. In case small-sized valves are constructed l have found it expedient to remove both the inner lining and the removable casing from the valve; but in cases where larger valves are built I have found it a great advantage to add the lining and removable casing of the valve, as shown in the drawings.

It will be noted that by the peculiar construction broadly set forth in this specification the friction'is considerably reduced, and in consequence the lifetime of the valve is correspondingly lengthened. The pressure, being equalized upon the valve,- will tend to wear the parts in a uniform manner, and thereby gain advantages which will be readily apparent.

It will be noted that various-changes may be made in the details of construction without departing from the general spirit of myinvention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. ln a valve, the combination of a casing, a suitable inlet and outlet; a valve arranged in said casing having an upwardly-extending port leading to the top of said valve and a downwardly-extending port from the upper portion of said valve to the base thereof, thereby producing an equalization of pressure upon said valve and a means whereby the lateral pressure upon said valve is equalized, substantially as described.

2. In a valve, the combination of a casing, a suitable inlet and outlet, a rotary'valve ar ranged in said casing, the said valve having ports communicating with the top and bottom of said Valve, the said valve having cut IOS) IIO

IIS

away portions at the top and bottom thereof, substantially as described.

3. In avalve, the combination of a casing, a suitable inlet and outlet, a rotatable valve arranged in said casing, the said valve having an upwardly-extending port leading to the top thereof and a downwardly-extending port from the upper portion of said valve to the base thereof, the said valve having cut-away portions at the top and bottom thereof, substantially as described.

4. In avalve, J(he combination of a casing, a suitable inlet and outlet; a valve arranged in said casing having an upwardly-extending port communicating with said inlet leading to the top of said valve and a downwardlyextending port from the upper portion of said valve to the base thereof, the said valve having a cut-away portion at the top and bottom thereof, thereby producing an equalization of pressure on the top, bottom, and 'sides of said valve.

5. In a valve, the combination of a valvecasing, a suitable inlet and outlet connected thereto; a rotary balanced valve arranged in said casing having an upwardly-extending port and cut-away portion communicating with said inlet, a downwardly-extending port communicating with said cut-away portion and leading to the b'ottom of said valve, the said valve having a cut-away portion arranged in the bottom thereof, thereby producing an equalization of pressure upon the top, bottom, and sides of said valve, substantially as described. s

6. In 'a valve, the combination of a casing, a suitable inlet and outlet connected thereto, a rotary balanced valve arranged in said casing having an upwardly-extending port and cut-away portions on the top, and bottom of said valve communicating Ywith said inlet whereby the pressure is equalized on the top, bottom, and sides of said valve. l

7. In a valve, the combination of a valvecasing, an inlet and outlet communicating therewith, a removable lining secured in said casing, a valve operating in said lining and having ports communicating with the top and bottom of the said valve, the said valve having cut-away portions at the top and bottom thereof, substantially as described.

8. In a valve, the combination of a casing, a suitable inlet and outlet, a removable lining arranged therein, a rotatable valve, said valve having an upwardly-extending port leading to the top of said valve and a downwardly-extending port from the upper portion of said valve to the base thereof and a facing secured to said valve, substantially as described'.

9. In avalve, the combination of a casing, a suitable inlet and outlet, a removable lining secured in said casing, a rotatable valve arranged therein, said valve comprising an upper disk having a cut-away portion, a lower disk having a cutaway portion, a V-shaped body portion connecting the two disks, the said upper disk having a port therein, the said lV- shaped body portion having a port therein, substantially as described.

In testimony whereof I aflx my signature in the presence of two witnesses. i

FRANK M. OHAPPELL; yWitnesses: v

JOHN NOLAND, E. E. POTTER. 

